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/*
* GStreamer
* Copyright (C) 2012-2013 Fluendo S.A. <support@fluendo.com>
* Authors: Josep Torra Vallès <josep@fluendo.com>
* Andoni Morales Alastruey <amorales@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
*/
#include "gstosxcoreaudio.h"
#include "gstosxcoreaudiocommon.h"
#include "gstosxaudiosrc.h"
GST_DEBUG_CATEGORY_STATIC (osx_audio_debug);
#define GST_CAT_DEFAULT osx_audio_debug
G_DEFINE_TYPE (GstCoreAudio, gst_core_audio, G_TYPE_OBJECT);
#include "gstosxcoreaudiohal.c"
static void
gst_core_audio_class_init (GstCoreAudioClass * klass)
{
}
static void
gst_core_audio_init (GstCoreAudio * core_audio)
{
core_audio->is_passthrough = FALSE;
core_audio->device_id = kAudioDeviceUnknown;
core_audio->is_src = FALSE;
core_audio->audiounit = NULL;
#ifndef HAVE_IOS
core_audio->hog_pid = -1;
core_audio->disabled_mixing = FALSE;
#endif
}
/**************************
* Public API *
*************************/
GstCoreAudio *
gst_core_audio_new (GstObject * osxbuf)
{
GstCoreAudio *core_audio;
core_audio = g_object_new (GST_TYPE_CORE_AUDIO, NULL);
core_audio->osxbuf = osxbuf;
return core_audio;
}
gboolean
gst_core_audio_close (GstCoreAudio * core_audio)
{
AudioComponentInstanceDispose (core_audio->audiounit);
core_audio->audiounit = NULL;
return TRUE;
}
gboolean
gst_core_audio_open (GstCoreAudio * core_audio)
{
if (!gst_core_audio_open_impl (core_audio))
return FALSE;
if (core_audio->is_src) {
AudioStreamBasicDescription asbd_in;
UInt32 propertySize;
OSStatus status;
GstOsxAudioSrc *src =
GST_OSX_AUDIO_SRC (GST_OBJECT_PARENT (core_audio->osxbuf));
propertySize = sizeof (asbd_in);
status = AudioUnitGetProperty (core_audio->audiounit,
kAudioUnitProperty_StreamFormat,
kAudioUnitScope_Input, 1, &asbd_in, &propertySize);
if (status) {
AudioComponentInstanceDispose (core_audio->audiounit);
core_audio->audiounit = NULL;
GST_WARNING_OBJECT (core_audio,
"Unable to obtain device properties: %" GST_FOURCC_FORMAT,
GST_FOURCC_ARGS (status));
return FALSE;
} else {
src->deviceChannels = asbd_in.mChannelsPerFrame;
}
}
return TRUE;
}
gboolean
gst_core_audio_start_processing (GstCoreAudio * core_audio)
{
return gst_core_audio_start_processing_impl (core_audio);
}
gboolean
gst_core_audio_pause_processing (GstCoreAudio * core_audio)
{
return gst_core_audio_pause_processing_impl (core_audio);
}
gboolean
gst_core_audio_stop_processing (GstCoreAudio * core_audio)
{
return gst_core_audio_stop_processing_impl (core_audio);
}
gboolean
gst_core_audio_get_samples_and_latency (GstCoreAudio * core_audio,
gdouble rate, guint * samples, gdouble * latency)
{
return gst_core_audio_get_samples_and_latency_impl (core_audio, rate,
samples, latency);
}
gboolean
gst_core_audio_initialize (GstCoreAudio * core_audio,
AudioStreamBasicDescription format, GstCaps * caps, gboolean is_passthrough)
{
guint32 frame_size;
OSStatus status;
GST_DEBUG_OBJECT (core_audio,
"Initializing: passthrough:%d caps:%" GST_PTR_FORMAT, is_passthrough,
caps);
if (!gst_core_audio_initialize_impl (core_audio, format, caps,
is_passthrough, &frame_size)) {
goto error;
}
if (core_audio->is_src) {
/* create AudioBufferList needed for recording */
core_audio->recBufferList =
buffer_list_alloc (format.mChannelsPerFrame,
frame_size * format.mBytesPerFrame);
}
/* Initialize the AudioUnit */
status = AudioUnitInitialize (core_audio->audiounit);
if (status) {
GST_ERROR_OBJECT (core_audio, "Failed to initialise AudioUnit: %"
GST_FOURCC_FORMAT, GST_FOURCC_ARGS (status));
goto error;
}
return TRUE;
error:
if (core_audio->is_src && core_audio->recBufferList) {
buffer_list_free (core_audio->recBufferList);
core_audio->recBufferList = NULL;
}
return FALSE;
}
void
gst_core_audio_unitialize (GstCoreAudio * core_audio)
{
AudioUnitUninitialize (core_audio->audiounit);
if (core_audio->recBufferList) {
buffer_list_free (core_audio->recBufferList);
core_audio->recBufferList = NULL;
}
}
void
gst_core_audio_set_volume (GstCoreAudio * core_audio, gfloat volume)
{
AudioUnitSetParameter (core_audio->audiounit, kHALOutputParam_Volume,
kAudioUnitScope_Global, 0, (float) volume, 0);
}
gboolean
gst_core_audio_select_device (AudioDeviceID * device_id)
{
return gst_core_audio_select_device_impl (device_id);
}
gboolean
gst_core_audio_select_source_device (AudioDeviceID * device_id)
{
return gst_core_audio_select_source_device_impl (device_id);
}
void
gst_core_audio_init_debug (void)
{
GST_DEBUG_CATEGORY_INIT (osx_audio_debug, "osxaudio", 0,
"OSX Audio Elements");
}
gboolean
gst_core_audio_audio_device_is_spdif_avail (AudioDeviceID device_id)
{
return gst_core_audio_audio_device_is_spdif_avail_impl (device_id);
}
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